AV.io 4K firmware revert from 4.0.0 to 3.2.0?

We always upgrade the firmware on the AV.io 4K from the shipping version 3.2.0 to the latest 4.0.0 before shipping to customers. Lately we’ve had a few cases where the firmware on the AV.io 4K at customer sites are still 3.2.0. It’s possible that some units slipped through our QA process, but the question I want to ask is that is it possible for a AV.io 4K device with firmware upgraded to 4.0.0, to somehow revert to 3.2.0 under some particular scenarios, such as corruption of the 4.0.0 firmware?

The firmware would need to be downgraded manually - it is not possible for the AVio4K to revert by itself to 3.2 if updated to 4.0.0

Thank you Ryan, it must be a problem with our QA then.